Chapter 18.45
PLANNED DEVELOPMENT PERMIT
Sections:
18.45.020 Common open space requirements.
18.45.030 Additional planned development permit regulations.
18.45.040 Preapplication conference.
18.45.050 Preliminary development plan application.
18.45.060 Preliminary development plan notice, hearings and decision.
18.45.070 Final development plan.
18.45.080 Modification of final development plan.
18.45.010 Intent.
The intent of the planned development permit process is to allow a variety of uses and developments within the town of Twisp while retaining the ability of the town to review and condition those developments that might without restriction infringe on other uses in the district or threaten the environmental or aesthetic attributes of the town. The planned development permit process allows review and the implementation of restrictions or conditions on a development by the town, pursuant to identified issues and standards, in order to achieve the following objectives:
(1) Provide for flexibility in the design of land uses and activities to encourage more creative approaches to development, to result in more efficient, aesthetic, and environmentally responsive use of lands within the town;
(2) Allow for public input and response by town citizens and interested persons, agencies and groups, to better assure that land uses and development within the town reflect the needs and desires of town citizens and are consistent with the public welfare of the town;
(3) Permit creativity in design and placement of buildings, use of required open spaces, provision for on-site circulation plans, off-street parking and other site design elements that better utilize the potentials of special features of the property, including location, geography, topography, vegetation, size or shape, and scenic views;
(4) Facilitate the provision of economical and adequate public improvements, including streets and utilities;
(5) Minimize and/or mitigate the impacts of development on valuable natural resources and unique natural or existing features including but not limited to key wildlife habitats, riparian habitats, floodplain and other wetlands, mature tree stands, steep slopes, unique or aesthetically important views and vistas, and similar resources and features;
(6) Minimize and/or mitigate the impacts of development on the public health, safety, welfare, aesthetic values, and other interests of the town;
(7) Require the incorporation of public access to recreational opportunities, including trail systems, as a part of development activities;
(8) Allow areas to be combined together for development that would otherwise be developed on a lot-by-lot basis, and to develop the area jointly with clustered or common features and structures and shared roads and utilities for more economic use of the land and better utilization of limited land and natural resources and maintenance of open space areas;
(9) Assure that aesthetic values are considered in the architectural design of structures and in the overall development plans, and are a part of the review process of significant developments within the town;
(10) Provide regulations for the planned development permit process which will give notice to developers of pertinent issues, concerns and limitations in planning of projects. (Ord. 620 § 9(1), 2010)
18.45.020 Common open space requirements.
(1) Required Open Space Dedication. Planned developments shall include lands dedicated to open space as defined and limited in Chapter 18.10 TMC. Said open space areas shall meet the following minimum sizes, expressed as a percentage of the size of the total planned development parcel:
(a) Residential single-family district: 40 percent;
(b) Residential multifamily district: 30 percent;
(c) Any commercial district: 30 percent.
(2) Open space areas in a planned development shall meet the following minimum requirements:
(a) Open space area requirements cannot be met by inclusion of roads, utility structures, parking areas or other structures in determining the size of the open space area; required setback areas and landscaped areas (except parking areas) may be included as open space area.
(b) The location, shape, size and character of the open space must be suitable for the particular development; open space areas shall not be excessively fragmented.
(c) The uses authorized for open space must be appropriate to the scale and character of the proposed development, considering its size, density and topography.
(d) Open space shall be suitably improved for its intended use if applicable (e.g., restored to beneficial native habitat), including provision for suitable weed control and revegetation plans. Any improvements to be permitted in the open space area shall be appropriate to the authorized uses and must conserve and enhance the natural features of the open space.
(3) The development schedule must coordinate designation and improvement of open space with construction of the development improvements, including proper phasing of open space areas with phasing of other portions of the development.
(4) Open space must be protected in the final development plan by provisions to assure permanent retention and maintenance of the open space areas in accordance with approved uses. Such protection may be in the form of recorded restrictive covenants, including provisions requiring town approval prior to any amendment or repeal of any portion thereof, or dedication of open space areas to the town when such dedication is determined by the town to be in its best interest and is accepted by the town in writing, or any other assurances of protection deemed by the town to be both practical and legally sufficient to assure the permanent retention and maintenance of the open space areas. All legal documents necessary to implement the provisions for such protection shall be filed by the applicant with the final development plan and shall be subject to approval as to form by the town attorney. All such protective provisions shall vest in the town the right to enforce the terms thereof as they relate to permanent retention and maintenance of the open spaces and limitation of their uses as approved in the plan, including the right of the town to recover all costs of any enforcement action or of necessary maintenance not being performed, from the violators, including owners of the property within the development, in the event of lack of proper maintenance. (Ord. 620 § 9(2), 2010)
18.45.030 Additional planned development permit regulations.
(1) Utilities. All electrical lines, telephone lines, and other wiring conduits and similar facilities in planned developments shall be placed underground by the developer, unless this requirement is waived by the planning commission and the town council. Waiver of this requirement must be based upon the physical constraints of the site and/or technical difficulties with such underground installations that are unique to the lot or parcel, and shall not be based upon financial considerations alone. Waiver shall not be permitted when it would be in violation of the requirements of this or other town ordinances or regulations for the zone in which the planned development is located. When a planned development includes utility extensions that are to be dedicated to and become the responsibility of the town upon completion and acceptance thereof, the developer shall provide to the town a one-year maintenance bond for such utility extension to cover all necessary maintenance and repairs of the utility extension during the covered period. The developer may be required to increase the one-year term when special considerations or unique circumstances make a longer term advisable for the protection and welfare of the town, and upon order for such increased bond period by the town council; provided, that in no event shall the one-year term for the maintenance bond be reduced. Water and sewer line extensions shall be properly engineered with plans approved by the town and shall meet all applicable town, state and federal requirements.
(2) Views. Planned development proposals shall give consideration to views, both those available from the subject lot(s) or parcel in orientation of the development, and those views from neighboring properties and roadways that might be obscured or obstructed by the development. Proposals shall be designed to minimize obstruction of river views and of other desirable views from neighboring properties, including usage of more stringent height limitations, view corridors, and building orientation and location restrictions where feasible and appropriate.
(3) Trails and Recreation Facilities. As additional consideration for increased densities and development approval on riverfront parcels, developers may be required to dedicate a public nonmotorized trail along the river (in such location as shall be determined by the developer with approval of the administrator and in consultation with town departments and resource agencies). Residential planned developments shall consider additional trail systems in their development plans to promote both nonmotorized recreational opportunities and pedestrian circulation. Commercial planned developments shall consider and provide for pedestrian access to and through the development where practical. Multifamily residential planned developments or larger-scale residential planned developments shall consider other recreational areas and facilities, such as community parks, picnic areas and play areas, in the design of the development.
(4) Landscape Plans. Planned development applications shall include a general landscape plan which shall include plantings for street frontage and interior lot line buffers and parking lot and ornamental landscaping (including light diffusion and site obstruction), and which shall concentrate on low-water-use plantings where feasible. As a minimum, plantings shall include the landscaping and buffers specified in TMC 18.20.120 for the zoning district in which the planned development is proposed. Timed irrigation systems will generally be required in planned developments to minimize irrigation water needs.
(5) Additional Areas of Regulation. Those areas of concern set forth in TMC 18.45.050(2) as planned development program items shall be reviewed by the town and may be subject to regulation to meet the specified performance goal for each item where appropriate. (Ord. 620 § 9(3), 2010)
18.45.040 Preapplication conference.
An applicant for a planned development permit shall request a preapplication conference for informal review of a proposed project prior to submittal of a preliminary development plan application. Requests for preapplication conferences shall be in writing, directed to the town clerk and stating briefly the nature of the proposed planned development and the location thereof.
(1) Upon receipt of a request for preapplication conference, the town clerk shall notify the administrator who shall request a meeting with the appropriate town departments, resource agencies, and the developer.
(2) The purpose of the preapplication conference shall be to identify and interpret town ordinances and regulations applicable to the project, clarify necessary steps in the project approval process, make a preliminary identification of special concerns of town departments and/or resource agencies, and assist the developer in identification of site constraints and suggest potential solutions where possible.
(3) The town shall maintain minutes of all preapplication conferences, and a copy of the minutes shall be provided to the developer and shall be attached to the preliminary development plan application when filed.
(4) No planning commission members or town council members shall participate in a preapplication conference. (Ord. 620 § 9(4), 2010)
18.45.050 Preliminary development plan application.
Formal application for a planned development permit shall be made by completion of the planned development permit application (on forms provided by the administrator and including a completed impact assessment checklist, together with a completed SEPA environmental checklist, where required), payment of the applicable fee determined as set forth in Chapter 18.55 TMC, and submission of the application form and the preliminary development plan to the town clerk. The preliminary development plan shall include the following information and elements:
(1) Development Site Plan. The development site plan shall be a dimensional map drawn to a scale of not less than one inch equals 100 feet, and shall include a vicinity map of a reduced scale showing the proposed development in relation to existing landmarks. Nine copies of the development site plan shall be submitted by the applicant. The development site plan shall include the following:
(a) Boundaries of the site and north arrow;
(b) Location, dimensions and names of all existing and proposed roads serving, adjacent to or lying within one-quarter mile of the site;
(c) Areas proposed to be developed with approximate footprints of proposed buildings and their nature (e.g., residential, community use, commercial, office, etc.);
(d) Proposed location(s) and dimensions of common open space areas;
(e) Proposed public dedications;
(f) Location, dimensions and schematic design of off-street parking areas or facilities, showing points of ingress and egress;
(g) Location of major physiographic features such as rivers, canals, floodplain areas, etc.;
(h) Existing topographic contours for the entire site, at intervals of not more than five feet, together with existing drainage and identification of existing vegetation;
(i) Proposed land uses, densities and building types;
(j) Pedestrian and vehicular circulation pattern;
(k) Location and type of all existing and proposed recreational improvements, if any, to include nonmotorized trails and paths;
(l) Conceptual landscape plan;
(m) Proposed grading and drainage design.
(2) Written Planned Development Program and Specifications. The written planned development program shall include concise and detailed evaluation and information on the following items, and shall explain how the proposed goal of each item has been or will be met, or why such goal is unattainable for the project:
(a) An explanation of the density of the proposed project. The density goals are set forth in the regulations for the various zone districts (applies to residential uses only);
(b) Proposed ownership pattern;
(c) Operation and maintenance proposal (if not dedicated to the public) for the project amenities, roadways, utilities, etc. (e.g., property owners’ association, condominiums). The performance goal is to assure that a long-range maintenance program is provided for all common areas and commonly used utilities and roadways, with provision for collection of a prorated share of costs and expenses of such maintenance and for decision-making with regard thereto;
(d) General timetable for development, including any project phasing and conditions therefor and any foreseeable future expansion. The performance goal is to provide sufficient open spaces and project utilities and amenities for each phase of development, so that each phase can stand alone as a satisfactory completed project;
(e) Description of existing and proposed community and recreational facilities. The performance goal is for larger projects or projects that have a significant impact on existing formal or informal recreational opportunities to minimize and mitigate such impact by retention and expansion of existing opportunities or provisions for new or improved community or public recreation opportunities, including park areas, access to river or public lands, or recreational improvements such as pools, tennis courts, etc.;
(f) Visual impacts, including description of project view orientation, proposals to minimize view obstruction from adjacent lands and public roadways, and proposed site barriers for utility or loading areas, parking areas, etc. The performance goal is to minimize degradation of the existing views of river areas, mountains and open lands, to preserve the aesthetic qualities which the town values, to provide aesthetically pleasing visual barriers to unsightly areas, and to assure that new developments benefit from the available views without preventing their enjoyment by others;
(g) Landscaping, both existing and proposed, and irrigation system proposed. The performance goal is to assure a long-range landscape plan that provides necessary greenbelt around structures for fire protection, provides for tree and vegetative buffers to reduce noise, light and view impacts from neighboring lands, minimizes irrigation water needs, and prevents noxious weeds;
(h) Stormwater collection and disposal plan. The performance goal is to assure that stormwater runoff after development does not exceed the amount before development, and that stormwater disposal has no negative impact on the water quality of either surface or groundwater of the Methow Valley, and to provide, where feasible, and at the developer’s expense, a stormwater management system which can be extended to serve future developments;
(i) Geophysical characteristics of the site, including soils, slope, drainage patterns, erosion problems and controls. The performance goal is to prevent further or accelerated erosion of slopes or topsoil, provide for adequate site drainage and stormwater collection (see subsection (2)(h) of this section) properly designed for the site, and to identify problem areas prior to development to prevent unanticipated erosion or drainage problems;
(j) Air quality considerations and mitigation measures, including dust control measures. The performance goal is to allow no degradation of the air quality of the Twisp area, either from single projects or by cumulative impacts, and to prevent degradation of the ambient air quality by utilizing sufficient dust control measures both during periods of construction, and after project completion. Automobile emissions will be considered, and projects that will have a significant traffic impact will be expected to investigate all possible avenues to minimize motor vehicle usage, including provision for mass transit (such as bus or van runs to or from the project) and pedestrian/bike access;
(k) Traffic circulation elements, including anticipated traffic increases (vehicles per day) and major times thereof. The performance goal is to assure a smooth flow of traffic through and throughout the town, to avoid traffic congestion and hazardous intersections, mergers or other traffic patterns, and to minimize increased traffic loads by encouraging pedestrian and nonvehicular transportation or mass transit;
(l) Noise considerations and mitigation measures therefor. The performance goal is to minimize noise impacts on surrounding properties and the town in general, and mitigation measures to be examined include placing indoors those recreation facilities which may generate noise in the evening or night hours, limiting motor vehicle usage within the project, plantings to buffer noises, and limiting allowable hours and days of construction;
(m) A concise statement of the general public benefits to be derived from the development of the proposed project, which may include but are not limited to increased open space, special wildlife or recreation benefits, perimeter transitions to surrounding land uses, or new public facilities included in the development (including dedicated or public trails, parks, etc.). The performance goal is to assure that all approved projects benefit the general welfare of the town of Twisp;
(n) Proposals to control or prohibit further land divisions, where appropriate. The performance goal is to provide perpetual restriction on future division of the developed property beyond the approved density and/or below the approved minimum lot sizes, and to eliminate the need for town oversight to enforce such approved densities/lot sizes;
(o) Description of planned uses of and improvements to common open space areas, if any, and proposals to ensure future maintenance of common open space areas, and to ensure compliance with the open space requirements set forth in TMC 18.45.020;
(p) An explanation of all restrictions and proposals to protect wildlife, including but not limited to dog control, fencing restrictions, maintenance of riparian areas, and maintenance or re-establishment of recommended native vegetation for wildlife habitat. The performance goal is to allow no net loss of key or critical wildlife habitats, to provide for wildlife passage through developed areas, and to minimize the threat of domestic pets to wildlife.
(3) Preliminary Utilities Plan and Specifications. The preliminary utilities plan and specifications shall depict the planned extension of any town utilities, including water and sewer lines, together with specifications and preliminary engineering therefor, and showing compliance with all state and town rules, regulations and codes applicable to such utility extensions, and shall detail any utility installations which are not an extension of town utilities. The preliminary utilities plan shall reveal those utility extensions that the developer desires to dedicate to the town upon their completion. Three copies of the preliminary utilities plan and specifications shall be submitted by the applicant.
(4) SEPA environmental checklist and any fee charged by the town for the filing and processing thereof. (Ord. 620 § 9(5), 2010)
18.45.060 Preliminary development plan notice, hearings and decision.
(1) Applications. All applications for planned developments shall be processed in accordance with Chapter 14.05 TMC. In addition, the procedures and requirements set forth in TMC 18.45.020 through 18.45.050 shall be followed. It is intended that, to the extent possible, review of preliminary planned developments will be processed simultaneously with any applications for rezones, conditional use permits, and similar quasi-judicial or administrative actions that may be required. If requested by the applicant, the town may process an annexation concurrently with a planned development application.
(2) Public and Agency Notice. When an application for a planned development has been accepted as complete, the administrator shall establish a date and time and provide notice for a public hearing in accordance with TMC 14.05.040.
(3) Review Requirements. Copies of the preliminary planned development, supplementary materials and environmental documents shall be forwarded by the administrator to the following agencies, as deemed appropriate, at least 15 days prior to the hearing date for their respective recommendations, if any:
(a) Town department heads;
(b) Town consulting engineers;
(c) Okanogan County assessor, Okanogan County planning and Okanogan County public works;
(d) Any affected irrigation district and/or public or private utilities, such as electrical, telephone, cable, water;
(e) Natural Resources Conservation Service;
(f) Any school district or fire district encompassing any of the area included in the preliminary planned development;
(g) Any governmental agencies concerned, including Okanogan County, Colville and Yakama Tribes, OCOG (RTPO) and appropriate state and federal agencies. State agencies may include Departments of Fish and Wildlife, Ecology, Health and Transportation depending on location and scope of project. Federal agencies may include the Environmental Protection Agency, Corps of Engineers, Fish and Wildlife Service, Bureau of Reclamation, Bureau of Indian Affairs, depending on location and scope of project;
(h) The town of Twisp planning commission;
(i) Okanogan Pest and Disease Control Board, if the plat contains agricultural uses.
The above agencies shall also be given notices of hearing. Recommendations of the aforesaid public agencies, if any, shall be submitted to the town of Twisp a minimum of seven days prior to the hearing provided for in subsection (5) of this section.
The administrator shall review the application and related materials for consistency between the development regulations and SEPA in accordance with TMC 14.05.050.
(4) Staff Report. The administrator shall prepare a staff report, including findings of fact, to present to the planning commission. The staff report shall include a review of the proposed planned development and any comments received from commenting agencies, departments and interested citizens. The report shall also review the proposed planned development’s conformance with land use regulations and the town of Twisp comprehensive plan.
(5) Public Hearing. An open record public hearing shall be held before the planning commission in accordance with TMC 14.05.060.
(6) Planning Commission Recommendation – Factors to Be Considered. The planning commission shall consider the following in preparing its recommendation to the town council:
(a) Staff report, agency, department and other reports or comments;
(b) Public testimony and all other relevant facts; and
(c) State Environmental Policy Act compliance documentation and determination submitted with the proposal shall be incorporated as a condition for approval of the proposal unless modified by the planning commission and approved by the administrator and/or town council.
The planning commission must consider whether the proposed planned development makes appropriate provisions for, but not limited to, public health, safety and general welfare and for such open spaces, drainage ways, irrigation provisions pursuant to RCW 58.17.310, streets, alleys, other public ways, fish and wildlife and their habitat, water supplies, sanitary waste, parks, playgrounds, sites for schools and school grounds, and shall consider other relative facts, including sidewalks, other shared use paths and other planning features that assure safe walking conditions for students who walk to and from school, fire and fire safety, including wildland fire safety, the town’s comprehensive plan, zoning codes with the land use controls, and whether the public use and interest will be served by the planned development.
Within 30 days after conclusion of the hearing on a preliminary development plan application (including a continued hearing) the planning commission shall recommend approval, conditional approval, or disapproval of the application for planned development. If the planning commission finds that the proposed planned development does make such applicable provisions and that the public use and interest will be served, then the planning commission shall recommend approval of the preliminary planned development to the town council and provide requirements for preliminary planned development approval. If the planning commission finds that the proposed planned development does not make such appropriate provisions, or that the public use and interest will not be served, the planning commission shall recommend disapproval of the preliminary planned development or shall recommend appropriate changes or conditions be attached to the preliminary planned development to ensure that the public use and interest will be served.
(7) Planning Commission Recommendation – Town Council Decision. The planning commission and town council shall follow the procedures in Chapter 14.05 TMC.
(8) Approval – Conditions.
(a) The town council shall inquire into the public use and interest proposed to be served by the establishment of the proposed planned development.
(b) The town council shall determine if appropriate provisions are made for, but not limited to, the public health, safety and general welfare, for open spaces, drainage ways, streets, alleys, other public ways, water supplies, sanitary wastes, parks, playgrounds, sites for schools and school grounds, fire protection and fire safety, including wildland fire safety, and consider all other relevant facts and determine whether the public use and interest will be served by the proposed planned development.
(c) The town council shall also consider the recommendation from the planning commission regarding any physical constraints, SEPA mitigation measures, or other conditions to protect the health, safety, and welfare affecting the proposed planned development, and may require protective improvements as a condition of the approval. Any such requirements shall be noted on the face of the final plat or shall be recorded as part of covenants, conditions and restrictions for the planned development. If the town council finds that the proposed planned development makes appropriate provisions for public health, safety and general welfare and for such open spaces, drainage ways, streets, alleys, other public ways, water supplies, sanitary wastes, parks, playgrounds, sites for schools and school grounds, fire protection and fire safety, including wildland fire safety, and that the public use and interest will be served by the planned development, then it shall be approved.
(d) If the town council finds that the proposed planned development does not make such appropriate provisions, or that the public use and interest will not be served, the town council may disapprove the proposed planned development. Dedication of land to any public body, or fees paid in lieu thereof, may be required as a condition of planned development approval and shall be clearly shown on the final planned development plat. (Ord. 811 § 1, 2024; Ord. 620 § 9(6), 2010)
18.45.070 Final development plan.
When the developer has completed all necessary improvements of roads, utilities and other infrastructure requirements or has bonded the same for completion, and has taken all other action as required by the preliminary development plan approval and any conditions thereon, the developer shall submit his/her final development plan to the administrator, in triplicate, including recordable form thereof signed by all owners (including lienholder of record) of the property included in the planned development and on stable base Mylar polyester film or equivalent approved by the administrator. If the administrator, upon receipt of such final development plan, including copies of any necessary covenants, property owner’s association documents, and other documents necessary to meet the terms of the preliminary approval, and binder or commitment with form of the required maintenance bond on dedicated utility extensions, determines that the final development plan is consistent with the preliminary development plan as approved or conditioned, and that any bond is sufficient to assure completion of any unfinished improvements, or maintenance of dedicated improvements, the administrator shall so inform the town council by written recommendation, and the town council shall at its next public meeting set a date for consideration of approval of the final development plan. The town council shall, at such public meeting, determine whether the final development plan is consistent with the preliminary application as approved or conditioned, whether any required bond is adequate, and whether the requirements of this title, other applicable ordinances and state law have been satisfied by the developer. The council shall then approve the final development plan, refer it to the planning commission for further review of specified issues or concerns, or disapprove the final development plan.
(1) No final development plan shall be considered for approval unless all other permits and approvals necessary for development of the project, except building permits, are obtained and/or approved, and including Shoreline Management Act permits or approvals, floodplain permits, and any other applicable environmental or land use permits and approvals.
(2) If the council approves the final development plan, the mayor shall sign the approved plan, and a fully signed copy thereof, together with all other documents necessary to such approval, shall be filed with the town of Twisp. The final development plan shall then be recorded with the Okanogan County auditor, along with recording of any other necessary documents.
(3) The terms and conditions of the approved final development plan, as filed and recorded, shall constitute limitations on the use of the land
included therein and upon development of the site, which shall be enforced by all means included therein or allowed by law.
(4) Approval of the final development plan shall constitute authorization for the developer or his/her successors or assigns in the property to proceed with the development thereof following issuance of all other appropriate building, sewer or other permits or approvals by the town, in accordance with the terms and conditions of the final development plan as approved.
(5) Approval of a final development plan shall be valid for a term of two years following issuance thereof, and construction shall commence within said two-year period and shall be completed within two years after commencement, except as to phasing approved as a part of the final development plan, unless extended by the town council upon recommendation of the administrator and application therefor by the developer (or his/her assigns), for good cause shown. An extension shall be valid for one additional year, and no more than three extensions shall be given for any planned development permit. Extensions may be conditioned by the town council after recommendation by the administrator.
(6) If construction under a final development plan is not commenced and completed within the time limits set forth in subsection (5) of this section, or any allowed extensions thereof, then the planned development permit approval shall expire and any future development of the subject property shall be in accordance with the zoning and land use ordinances then in effect, without regard to such prior planned development permit approval.
(7) A final development plan approval for a planned development that includes division of property into separate lots or parcels shall constitute subdivision approval for such land division. (Ord. 620 § 9(7), 2010)
18.45.080 Modification of final development plan.
(1) Minor Modifications. Minor changes in the location, siting and height of buildings and structures may be authorized by the administrator without additional public hearings or town council review if required by engineering or other circumstances not foreseen at the time the final plan was approved. No change authorized by the administrator may cause any of the following:
(a) A change in the use or character of the development;
(b) An increase in overall coverage by structures;
(c) An increase in the intensity of use;
(d) An increase in demands on the road system or any other increases in traffic impacts;
(e) An increase in demands on public utilities;
(f) A reduction in approved open space;
(g) A reduction in off-street parking and/or loading space;
(h) A reduction in required pavement widths.
(2) Major Modifications. All other changes in use, or rearrangement of lots, blocks, and/or building tracts, or any changes in the provision for common open spaces, or any other changes from the final development plan as approved or conditioned, except those listed in subsection (1) of this section, must be approved by the town council after public hearing thereon by the planning commission and recommendation, and upon formal application by the developer (or his/her assigns) including payment of required fees and submission of SEPA environmental checklist for the proposed modification, which shall be considered as a supplement to all environmental information provided with the original planned development permit application. Any approved changes in the final development plan must be recorded and filed as amendments in accordance with the procedure established for the recording and filing of the initial final development plan documents. (Ord. 620 § 9(8), 2010)